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BD37545FS PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD37545FS
기능 Sound Processor
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BD37545FS 데이터시트, 핀배열, 회로
1/4
Structure:
Silicon Monolithic Integrated Circuit
Product:
Sound Processor for car audio
Type: BD37545FS
Package:
SSOP-A32
Feature
1. Reduce switching noise of input gain control, mute, main volume, fader volume, bass, middle, treble by using
advanced switch circuit [Possible to control all steps]
2. Built-in ground isolation amplifier inputs, ideal for external stereo input.
3. Built-in differential input selector that can make various combination of single-ended / differential input.
4. Built-in input gain controller reduce switching noise for volume of a portable audio input.
5. Decrease the number of external components by built-in 3-band equalizer filter, LPF for subwoofer, HPF.
And, possible to control Q, Gv, fo of 3-band equalizer and fc of LPF and fc of HPF by I2C BUS control freely.
6. It is possible for the bass, middle, treble to the gain adjustment quantity of ±20dB and 1 dB step gain adjustment.
7. It is equipped with output terminals of Subwoofer. Moreover, the stereo signal of the front and rear also can be
output by the I2C BUS control.
8. Built-in mixing input and mixing attenuation.
9. Bi-CMOS process is suitable for the design of low current and low energy. And it provides more quality for
small-scale regulator and heat in a set.
10. Package is SSOP-A32. Putting input-terminals together and output-terminals together can make PCB layout
easier and can makes area of PCB smaller.
11. It is possible to control by 3.3V / 5V for I2C BUS.
Absolute Maximum Ratings (Ta=25)
Parameter
Symbol
Limits
Unit
Power supply Voltage
Input voltage
Power Dissipation
Storage Temperature
VCC
VIN
Pd
Tastg
10.0
VCC+0.3GND-0.3
950 1
-55+150
V
V
mW
1 At Ta25°C or higher, this value is decreaced to 8.5mW/°C
When Rohm standard board is mounted.
Rohm standard board:
Size70×70×1.6(mm3)
materialFR4 glass-epoxy substrate (copper foil area: not more than 3%).
Operating Range
Parameter
Symbol
Power supply Voltage
VCC
Temperature
Topr
Design against radiation-proof isn’t made.
Min. Typ. Max.
7.0 9.5
-40 +85
Unit
V
REV. A




BD37545FS pdf, 반도체, 판매, 대치품
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Cautions on use
(1) Absolute maximum ratings
If applied voltage, operating temperature range, or other absolute maximum ratings are exceeded, the LSI may
be damaged. Do not apply voltages or temperatures that exceed the absolute maximum ratings. If you think of
a case in which absolute maximum ratings are exceeded, enforce fuses or other physical safety measures and
investigate how not to apply the conditions under which absolute maximum ratings are exceeded to the LSI.
(2) GND potential
Make the GND pin voltage such that it is the lowest voltage even when operating below it. Actually confirm
that the voltage of each pin does not become a lower voltage than the GND pin, including transient phenomena.
(3) Thermal design
Perform thermal design in which there are adequate margins by taking into account the allowable power
dissipation in actual states of use.
(4) Shorts between pins and misinstallation
When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the
LSI. If it is misinstalled and the power is turned on, the LSI may be damaged. It also may be damaged if it is
shorted by a foreign substance coming between pins of the LSI or between a pin and a power supply or a pin
and a GND.
(5) Operation in strong magnetic fields
Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction.
REV. A

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관련 데이터시트

부품번호상세설명 및 기능제조사
BD37545FS

Sound Processor

ROHM
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